io wait

  1. E

    [SOLVED] High IO wait during backups after upgrading to Proxmox 7

    We recently completed the upgrade to Proxmox 7. The issue exists on two different kernels pveversion: pve-manager/7.2-7/d0dd0e85 (running kernel: 5.15.39-1-pve) and pve-manager/7.2-7/d0dd0e85 (running kernel: 5.15.35-2-pve) Since the upgrade Io wait has increased dramatically during vzdump...
  2. T

    IO performance issue with vzdump since upgrade to version 7

    Since updating to Proxmox version 7, we have not been able to backup a single VM (Production affected) The issue is that VZDUMP slows down and VM's on the Proxmox nodes become unresponsive. I was able to get 450MB transfer using rsync to the VM locally to test access to the vm drives which go...
  3. M

    Slow VM

    good morning guys, i'm new to the forum and i use proxmox for about 3 years, i'm having a problem after changing my server disks, i only have 3 VMs on it, and after the exchange i noticed that one of them is slow in some tasks , the slowness does not always occur, they are small "chokes" that it...
  4. B

    Hohe IO Delay Werte

    Hallo, sobald mehr als 3 virtuelle Systeme laufen, heben die IO Delay Werte spürbar ab. Folglich reagieren die Systeme immer langsamer. Solange es sich bei den virtuellen Systemen nur um Linux handelt geht es noch. Schlimm wird es meistens, wenn zusätzlich ein virtuelles Windows-System läuft...
  5. K

    [SOLVED] Estremely poor performance I/O performance after upgrade

    Hi guys, I am struggling since 4.4-12 to 5.1-36 upgrade (to be fair it's a new deploy) due to terrible I/O performances via iSCSI (but after some testing also NFS seems affected). The problem doesn't always show up, but I have been able to reproduce it in this manner: VM just booted up with...
  6. C

    Slow io and high io waits

    Hello, I am still quarreling around with some wired io performance issues where I could not find any likly issue match in this forum. Since Proxmox 4.4 or so (now running Proxmox 5) the disk io of our seems to be incredible bad. iostat show that the disk with the zfs pools for our vms drop to...


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